Bellflower's climate is characterized by mild winters and warm summers, with temperatures rarely dipping below 0°C or rising above 40°C. Winters are cool, with January and February averaging around 14°C, while December is slightly cooler at 12°C. Spring arrives in March, bringing temperatures gradually warming up to an average of 17°C by April, which remains pleasant throughout the month. Summers are warm, with July and August averaging a high of 25°C, but temperatures can occasionally reach above 35°C during heatwaves. Autumn sees a gentle decline in temperature, with October and November averaging around 19°C and 18°C respectively, before cooling down further into winter.